我有一个用户可以录制视频的应用,此视频保存在照片库中,我存储了视频的路径,以便将来用户可以再次看到应用内的视频。问题是我使用的方法我认为它给了我某种临时路径,并且在几天后,视频仍然在画廊中,但路径不再有效并使应用程序崩溃。这是我正在使用的代码:
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) {
let mediaType: String = info["UIImagePickerControllerMediaType"] as! String
if mediaType == "public.movie" {
let tempImageURL = info[UIImagePickerControllerMediaURL] as! NSURL!
let pathString = tempImageURL.relativeString
self.dismissViewControllerAnimated(true, completion: {})
if picker.sourceType == UIImagePickerControllerSourceType.PhotoLibrary {
self.videoPath = pathString
// Save the path in the DB
} else {
VideoManager.saveVideo(tempImageURL, onComplete: { (path) -> Void in
self.videoPath = path
// Save the path in the DB
})
var fileManager: NSFileManager = NSFileManager()
fileManager.removeItemAtPath(pathString!, error: nil)
}
}
}
VideoManager.saveVideo方法代码如下:
func saveVideo(videoURL: NSURL, onComplete:((path: String) -> Void)) {
var assetsLibrary: ALAssetsLibrary = ALAssetsLibrary()
assetsLibrary.writeVideoAtPathToSavedPhotosAlbum(videoURL, completionBlock: { (assetURL: NSURL!, error: NSError!) -> Void in
var path: String = error == nil ? "\(assetURL)" : kEmptyString
onComplete(path: path)
})
}
我不知道我做错了什么,我尝试过使用方法UISaveVideoAtPathToSavedPhotosAlbum但没有成功..有什么想法吗?
为了提供更多信息,当从图库中选择视频时,我得到的网址如下:
file:///private/var/mobile/Containers/Data/Application/D2E8E31B-CEA0-43B0-8EF9-1820F6BDE4A9/tmp/trim.AD855155-AB78-4A16-9AA8-DF2B3F39824E.MOV
当我使用相机录制新视频时,首先我有这个网址:
file:///private/var/mobile/Containers/Data/Application/D2E8E31B-CEA0-43B0-8EF9-1820F6BDE4A9/tmp/capture/capturedvideo.MOV
当我写writeVideoAtPathToSavedPhotosAlbum时,它会返回一个如下的网址:
assets-library://asset/asset.MOV?id=958507B5-1353-4DDC-BC07-D9CBC6126657&ext=MOV
它们都有效,但几天后停止工作。
答案 0 :(得分:1)
好的,我终于找到了解决方案,问题是您无法直接使用存储的URL访问照片库,您必须使用我缺少的assetLibrary.assetForURL方法。最后,imagepickercontroller委托方法如下:
$sql = "
UPDATE oc_product AS p
INNER JOIN oc_currency as c
ON p.price2_currency_code=c.`code`
SET p.price=case WHEN p.price2_currency_code='EUR' THEN p.price2*c.`value`
WHEN p.price2_currency_code='USD' THEN p.price2*c.`value`
ELSE p.price
END";
我也错过了当你录制视频时,你必须使用以下方式获取网址:
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) {
let mediaType: String = info["UIImagePickerControllerMediaType"] as! String
if mediaType == "public.movie" {
self.dismissViewControllerAnimated(true, completion: {})
if picker.sourceType == UIImagePickerControllerSourceType.PhotoLibrary {
let tempImageURL = info[UIImagePickerControllerReferenceURL] as! NSURL!
self.videoPath = tempImageURL.absoluteString
} else {
let tempImageURL = info[UIImagePickerControllerMediaURL] as! NSURL!
VideoManager.saveVideo(tempImageURL, onComplete: { (path) -> Void in
self.videoPath = path
})
}
}
}
但是当你得到视频时,你必须这样做:
let tempImageURL = info[UIImagePickerControllerMediaURL] as! NSURL!
希望它有所帮助!!